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(No Model.)

I. E. KOHLMEYER. DRIVING MEGHANISMYFOB. CYCLES.

No. 563,971. Patented July 14,1896.

W/ TNE SSE S:

UNITED STATES PATENT OFFICE.

INGO E. KOI-ILMEYER, OF COPENHAGEN, DENMARK, ASSIGNOR TO GUSTAV LEOHALBERSTADT, OF SAME PLACE.

DRIVING MECHANISM FOR CYCLES.

SPECIFICATION forming part of Letters Patent No. 563,971, dated July 14,1896.

Application filed May 14, 1894. Serial No. 511,225. (No model.) Patentedin Germany November 28,1891, No. 63,101,- in England November 28,1891,No. 20,764; in France December '7, 1891, No. 204,704, andinDenmark May4,1892,No. 24.

To all whom it may concern.-

Be it known that I, INGO E. KOHLMEYER, manufacturer, of Raadhus strade,Copenhagen, Denmark, have invented certain new 5 and useful Improvementsin Driving Mechanism for Cycles, of which the following is aspecification, and for which Letters Patent were granted in GermanyNovember 28, 1891, No. 63,101; in Great Britain November 28,

re 1891, No. 20,764; in France December 7, 1891, No. 204,704, and inDenmark May 4, 1892, N0. 24, in the joint names of Cornelius Steffensen,Christian VVoer, and Ingo Kohlmeyer.

The object of the invention is to provide a new and improveddriving-gear for cycles which is simple and durable in construction andarranged to directly transmit the motion of the crank-shaft to thedriving-wheel by means of gear-wheels instead of the endless 2osprocket-chain heretofore employed.

The invention consists principally in certain arrangements of shaftswith which are used gears of peculiar construction, as described below.

The invention further consists in certain details of construction ofsaid gears, which are below pointed out.

The invention also consists of certain parts and details, andcombinations of thesame,

as will be fully described hereinafter, and

then pointed out in the claims.

Reference is to be had to the accompanying drawing,in which the figureis a sectional plan view of the improvement.

The bicycle is provided with the usual crank-shaft A, carrying thecranksB, and also carrying a bevel gear-wheel Cin mesh with a bevelgear-wheel D, secured on a shaft E, journaled in ballgbearings F,arranged in an auxiliary frame G, forming part of the main frame of thebicycle. The shaft E extends longitudinally and carries at its rear enda bevel gear-wheel 1-]? in mesh with a bevel gear-wheel I, secured onthe hub J of the driving-wheel journaled on the axle K. Now, when thepedals are set in-motion by the rider of the bicycle, a rotary motion isgiven to the crank-shaft A, and this motion is transmitted by the bevelgear-wheels C and D to the longitudinally-extending shaft E, whichtransmits this motion by the bevel gear-wheels as their teeth, ifdesired.

By the arrangement described the rotary motion of the crank-shaft A isdirectly trans- 6 mitted to the driving-wheel without the use of theendless sprocket-chain and sprocketwheels now employed in bicycles.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent- 1. Thecombination with the drive and the driven shaft, of a counter-shaftgeared thereto,the gears on the counter-shaft being formed with parallelflanges each having circularlyarranged series of opposed ball-bearingsand roller-like teeth j ournale'd at their ends in said ball-bearings,substantially as described.

2. The combination with the drive and the driven shaft, of acounter-shaft having an inclosing case provided with ball-bearings inwhich it turns, the gears on the counter-shaft being formed withparallel flanges provided with circularly-arranged series ofball-bearings and roller-like teeth having conical ends journ aled insaid ball-bearin gs, substantially as described.

3. The combination with the hub and parallel flanges having opposedrecesses or sockets and openings respectively, of the ball- 0 bearings NN held removably in said recesses and openings and the roller-like teethjournaled at their ends in the opposed ball-bearings, substantially asdescribed.

In testimony that I claim the foregoing as 5 my invention I have signedmy name in presence of two subscribing witnesses.

INGO E. KOHLMEYER. 'Witnesses:

CHE. WoER, L. HOFMAN BABY.

